Seal strip clamping structure and vehicle

Abstract

This utility model belongs to the field of vehicle parts technology, and provides a sealing strip snap-fit ​​structure and a vehicle. The snap-fit ​​structure includes: a structure for snapping a sealing strip onto a vehicle drain trough, forming a seal between the vehicle drain trough and the inner sheet metal of the hood. The snap-fit ​​structure includes: a first snap-fit ​​part, with multiple first snap-fit ​​parts spaced apart on the sealing strip; and a second snap-fit ​​part, with a second snap-fit ​​part on the drain trough corresponding to the first snap-fit ​​parts, and the first snap-fit ​​parts and the second snap-fit ​​parts are movably snap-fitted together. Compared with the prior art, this utility model solves the problems of increased cost and complex assembly caused by the need for additional components in traditional snap-fit ​​installation by setting elastically deformable first snap-fit ​​parts and / or second snap-fit ​​parts between the sealing strip and the vehicle drain trough, and achieving a movable snap-fit, while avoiding the defects of high mold cost, complex process, and poor adaptability in two-color injection molding.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle parts technology, specifically relating to a sealing strip snap-fit ​​structure and a vehicle. Background Technology

[0002] Vehicle drainage channels are specialized components in a car's body structure used to collect and drain rainwater, typically located at key seams in the hood area. Their core function is to guide rainwater along a predetermined path through their grooved design, preventing rainwater accumulation in the engine compartment and thus avoiding problems such as component corrosion, short circuits, or seal failure caused by rainwater intrusion. A sealing strip is usually installed between the vehicle drainage channel and the inner sheet metal of the hood; its main function is to prevent rainwater and debris from splashing into the engine compartment, avoiding damage to engine components due to rainwater or foreign object intrusion.

[0003] In existing technologies, there are two main methods for installing sealing strips: The first is snap-on installation: Independent snaps are attached to the sealing strip, which is then used to fix the strip to the drain. This method requires additional material costs for the snaps and manual installation, leading to reduced overall manufacturing efficiency. Furthermore, the reliability of the connection between the snaps and the sealing strip is easily affected by assembly errors. The second method is two-color injection molding: The sealing strip and the drain body are directly molded together using a two-color injection molding process. While this method eliminates subsequent assembly steps, it requires high-precision, high-cost two-color injection molds and has a long injection cycle, significantly increasing manufacturing costs. It also limits the length adjustment and adaptability of the sealing strip.

[0004] Both of the above solutions have significant limitations: snap-on installation increases cost and assembly complexity due to the reliance on additional components; two-color injection molding is limited by mold costs and process complexity, making it difficult to flexibly adapt to the drainage channel structure requirements of different vehicle models. Furthermore, existing technologies mostly use rigid fixing to connect the sealing strip to the drainage channel, lacking elastic deformation capability, making them susceptible to seal failure or structural damage due to vibrations or temperature changes during vehicle operation. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a sealing strip snap-fit ​​structure and vehicle in light of the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a sealing strip snap-fit ​​structure is proposed for snapping a sealing strip onto a vehicle drainage ditch, forming a seal between the vehicle drainage ditch and the sheet metal inside the hood. The snap-fit ​​structure includes:

[0007] The first engaging portion is provided on the sealing strip at intervals;

[0008] The second engaging portion is provided on the drainage trough, corresponding one-to-one with the first engaging portion, and the first engaging portion and the second engaging portion are movably engaged; wherein...

[0009] The first engaging part and / or the second engaging part can undergo elastic deformation during the engaging process to ensure proper alignment of the first engaging part and the second engaging part, and can achieve clamping after the sealing strip is stretched and deformed along the length direction to fix the sealing strip on the vehicle-mounted drainage trough.

[0010] In the aforementioned sealing strip snap-fit ​​structure, a plurality of first snap-fit ​​portions are equally spaced along the length direction of the sealing strip on the sealing strip.

[0011] In the aforementioned sealing strip snap-fit ​​structure, the second snap-fit ​​part is a hook provided on the vehicle-mounted drainage trough, and the first snap-fit ​​part is a snap-fit ​​hole provided on the sealing strip.

[0012] In the aforementioned sealing strip snap-fit ​​structure, along the length of the sealing strip, the vehicle-mounted drainage trough is provided with a first snap-fit ​​area and a second snap-fit ​​area. Both the first snap-fit ​​area and the second snap-fit ​​area are provided with hooks. The hooks in the first snap-fit ​​area and the second snap-fit ​​area face opposite directions to apply forces in opposite directions to the sealing strip.

[0013] In one of the sealing strip snap-fit ​​structures described above, the vehicle-mounted drainage trough is provided with one or more rows of hooks along the length of the sealing strip.

[0014] In the aforementioned sealing strip snap-fit ​​structure, the hook includes a connecting part and a snap-fit ​​part. One end of the connecting part is fixedly connected to the vehicle-mounted drainage trough, and the other end is connected to the snap-fit ​​part. The connecting part and the snap-fit ​​part are arranged at an angle.

[0015] In one of the sealing strip snap-fit ​​structures described above, the snap-fit ​​part has a protruding arc surface at one end facing the vehicle-mounted drainage trough, which is used to make the snap-fit ​​part abut against the sealing strip.

[0016] In one of the sealing strip snap-fit ​​structures described above, the snap-fit ​​part has a chamfered structure at the end away from the connecting part.

[0017] In one of the sealing strip snap-fit ​​structures described above, the hook is integrally formed with the vehicle-mounted drainage trough.

[0018] This utility model solves the above-mentioned technical problems and also proposes a vehicle, including the above-mentioned sealing strip snap-fit ​​structure.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) By setting an elastically deformable first engagement part and / or second engagement part between the sealing strip and the vehicle-mounted water sink, and realizing the movable snap-fit, the problem of increased cost and complicated assembly caused by the need for additional parts in the traditional snap-fit ​​installation is solved. At the same time, the defects of high mold cost, complex process and poor adaptability in the two-color injection molding method are avoided.

[0021] (2) Multiple first engaging parts are evenly spaced along the length of the sealing strip, which makes the sealing strip bear force evenly, easier to align during installation, and facilitates quick engagement by operators, thus improving assembly efficiency.

[0022] (3) By setting the second engaging part as a hook and setting two engaging areas facing opposite directions on the drain trough, the sealing strip is subjected to opposite pulling forces after engaging, forming a self-locking effect, thereby improving the stability of the connection and preventing the disengagement caused by vibration or external force. Attached Figure Description

[0023] Figure 1 This is a partial view of a sealing strip snap-fit ​​structure of this utility model installed between the sheet metal inside the hood and the water inlet.

[0024] Figure 2 This is a partial cross-sectional view of a sealing strip snap-fit ​​structure of this utility model installed between the sheet metal inside the hood and the water inlet.

[0025] Figure 3 A partial view of the gutter.

[0026] In the diagram, 100 is the inner sheet metal of the hood; 200 is the water drain; 210 is the second engaging part; 211 is the connecting part; 212 is the snap-fit ​​part; 213 is the curved surface; 214 is the chamfered structure; 300 is the sealing strip; and 310 is the first engaging part. Detailed Implementation

[0027] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0029] like Figures 1 to 3 As shown, this solution mainly focuses on the specific structure of the snap-fit ​​structure and its application in vehicles.

[0030] A sealing strip snap-fit ​​structure is used to snap a sealing strip 300 onto a vehicle drainage trough 200 to form a seal between the vehicle drainage trough 200 and the inner sheet metal 100 of the hood. The snap-fit ​​structure includes a first snap-fit ​​part 310 and a second snap-fit ​​part 210.

[0031] Specifically, the first engaging portion 310 is disposed on the sealing strip 300, and multiple first engaging portions 310 are spaced apart on the sealing strip 300. The second engaging portion 210 is disposed on the drain trough 200 and corresponds one-to-one with the first engaging portions 310. The first engaging portion 310 and the second engaging portion 210 are movably engaged. The first engaging portion 310 and / or the second engaging portion 210 can undergo elastic deformation during the engagement process to ensure that the first engaging portion 310 and the second engaging portion 210 are correctly aligned. They can also be tightened after the sealing strip 300 is stretched and deformed along its length to fix the sealing strip 300 to the vehicle drain trough 200.

[0032] In this solution, by providing a first engaging portion 310 and / or a second engaging portion 210 that can elastically deform between the sealing strip 300 and the vehicle-mounted drainage trough 200, and achieving a movable snap-fit ​​connection, the problem of increased cost and complex assembly caused by the need for additional components in traditional snap-fit ​​installation is solved. At the same time, it avoids the defects of high mold cost, complex process, and poor adaptability in two-color injection molding. This structure not only simplifies the assembly process and reduces manufacturing costs, but also enhances the reliability of the connection through elastic deformation, enabling it to adapt to vibrations and temperature changes during vehicle operation, thereby improving sealing performance and service life.

[0033] In addition, the first engaging part 310 and / or the second engaging part 210, which have elastic deformation capabilities, can also adapt to the assembly tolerance between the sealing strip 300 and the drain trough 200, avoid engagement failure due to dimensional deviations, and absorb vibrations during vehicle operation and the thermal expansion and contraction effects of materials, maintaining a tight fit between the sealing strip 300 and the drain trough 200, and maintaining a good sealing effect for a long time.

[0034] Furthermore, multiple first engaging portions 310 are evenly spaced along the length of the sealing strip 300 at one end of the sealing strip 300 facing the drain trough 200. The even spacing of the multiple first engaging portions 310 along the length of the sealing strip 300 makes the sealing strip 300 subject to uniform force, making it easier to align during installation and allowing operators to quickly complete the engagement, thus improving assembly efficiency. At the same time, it helps to improve the overall stability and sealing consistency of the sealing strip 300, preventing local loosening or omissions.

[0035] It is worth mentioning that the second engaging part 210 is a hook provided on the vehicle-mounted drainage trough 200, and the first engaging part 310 is a snap-fit ​​hole provided on the sealing strip 300. The hook and snap-fit ​​hole are used to achieve the connection between the sealing strip 300 and the vehicle-mounted drainage trough 200.

[0036] Furthermore, along the length of the sealing strip 300, the vehicle-mounted drainage channel 200 is provided with a first snap-fit ​​area and a second snap-fit ​​area. Both the first snap-fit ​​area and the second snap-fit ​​area are provided with hooks. The hooks in the first snap-fit ​​area and the second snap-fit ​​area face opposite directions to apply opposite forces to the sealing strip 300.

[0037] By designing the second engaging portion 210 as a hook and providing two oppositely oriented engaging areas on the drain trough 200, the sealing strip 300 is subjected to opposite pulling forces after engaging, creating a self-locking effect. This improves the stability of the connection and prevents disengagement due to vibration or external forces. This ingenious design achieves reliable fixing of the sealing strip 300 without additional fasteners, significantly enhancing the connection's resistance to loosening and improving assembly efficiency.

[0038] Preferably, the vehicle-mounted drainage trough 200 is provided with one or more rows of hooks along the length of the sealing strip 300. Providing one or more rows of hooks on the drainage trough 200 allows for flexible adjustment of the number and layout of hooks according to the needs of different vehicle models, improving the versatility and adaptability of the snap-fit ​​structure. This makes it suitable for various drainage trough 200 structures and expands the product's market applicability.

[0039] Furthermore, the hook includes a connecting part 211 and a snap-fit ​​part 212. One end of the connecting part 211 is fixedly connected to the vehicle-mounted drainage trough 200, and the other end is connected to the snap-fit ​​part 212. The connecting part 211 and the snap-fit ​​part 212 are arranged at an angle.

[0040] The hook adopts a non-linear structure composed of a connecting part 211 and a snap-fit ​​part 212, and is set with an included angle, so that the hook has a certain elastic deformation space, which makes it easier to insert and less prone to breakage during the snap-fit ​​process, improving the smoothness of the snap-fit ​​process and the reliability of the connection, while increasing the load-bearing capacity and fatigue resistance of the hook.

[0041] It is worth mentioning that the end of the snap-fit ​​part 212 facing the vehicle-mounted drainage channel 200 is provided with a protruding arc surface 213, which is used to make the snap-fit ​​part 212 abut against the sealing strip 300.

[0042] The end of the snap-fit ​​part 212 is provided with a protruding arc surface 213 structure, which can fit tightly against the surface of the sealing strip 300 after snap-fit, increase the contact area and friction, thereby enhancing the snap-fit ​​fastening effect, preventing the sealing strip 300 from loosening or slipping, and further ensuring the long-term stability of the sealing performance.

[0043] Preferably, the end of the snap-fit ​​portion 212 away from the connecting portion 211 is provided with a chamfered structure 214. Providing the chamfered structure 214 at the end of the snap-fit ​​portion 212 away from the connecting portion 211 facilitates guiding the sealing strip 300 smoothly into the snap-fit ​​position during the snap-fit ​​process, reducing assembly difficulty, minimizing the risk of damage to the sealing strip 300 or hook during the snap-fit ​​process, and improving assembly efficiency and product yield.

[0044] Preferably, the hook is integrally formed with the vehicle-mounted drainage trough 200. Integrating the hook with the vehicle-mounted drainage trough 200 eliminates the need for separate hook installation, simplifies the manufacturing process, and improves production efficiency. Simultaneously, the integrally formed structure has higher structural strength and durability, reducing the risk of connection failure due to poor assembly.

[0045] The installation process of the snap-fit ​​structure in this solution is as follows: First, align the snap-fit ​​holes on the sealing strip 300 with the hooks in the first or second snap-fit ​​area. During the alignment process, the snap-fit ​​holes and / or hooks can be elastically deformed by stretching the sealing strip 300 or swinging the hooks, thereby absorbing the manufacturing tolerances between the sealing strip 300 and the vehicle-mounted drainage trough 200. After the snap-fit ​​holes and hooks have completed the initial alignment, stretch the sealing strip 300 along its length to make the hooks snap into the snap-fit ​​holes; then, continue to align the snap-fit ​​grooves on the sealing strip 300 with the hooks in the second or first snap-fit ​​area, and repeat the above operation until all the snap-fit ​​holes on the sealing strip 300 are fully engaged with the hooks.

[0046] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0048] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A sealing strip snap-fit ​​structure for snapping a sealing strip onto a vehicle drainage trough, forming a seal between the vehicle drainage trough and the inner sheet metal of the hood, characterized in that, The snap-fit ​​structure includes: The first engaging portion is provided on the sealing strip at intervals; The second engaging portion is provided on the drainage trough, corresponding one-to-one with the first engaging portion, and the first engaging portion and the second engaging portion are movably engaged; wherein... The first engaging part and / or the second engaging part can undergo elastic deformation during the engaging process to ensure proper alignment of the first engaging part and the second engaging part, and can achieve clamping after the sealing strip is stretched and deformed along the length direction to fix the sealing strip on the vehicle-mounted drainage trough.

2. The sealing strip snap-fit ​​structure as described in claim 1, characterized in that, Multiple first engaging portions are equally spaced along the length of the sealing strip on the sealing strip.

3. The sealing strip snap-fit ​​structure as described in claim 1, characterized in that, The second engaging part is a hook provided on the vehicle-mounted drainage trough, and the first engaging part is a snap-fit ​​hole provided on the sealing strip.

4. The sealing strip snap-fit ​​structure as described in claim 3, characterized in that, Along the length of the sealing strip, the vehicle-mounted drainage channel is provided with a first snap-fit ​​area and a second snap-fit ​​area. Both the first snap-fit ​​area and the second snap-fit ​​area are provided with hooks. The hooks in the first snap-fit ​​area and the second snap-fit ​​area are oriented in opposite directions to apply forces in opposite directions to the sealing strip.

5. The sealing strip snap-fit ​​structure as described in claim 3, characterized in that, The vehicle-mounted drainage trough is provided with one or more rows of hooks along the length of the sealing strip.

6. The sealing strip snap-fit ​​structure as described in claim 3, characterized in that, The hook includes a connecting part and a snap-fit ​​part. One end of the connecting part is fixedly connected to the vehicle-mounted drainage trough, and the other end is connected to the snap-fit ​​part. The connecting part and the snap-fit ​​part are set at an angle.

7. The sealing strip snap-fit ​​structure as described in claim 6, characterized in that, The end of the snap-fit ​​part facing the vehicle-mounted drainage trough has a protruding arc surface, which is used to make the snap-fit ​​part abut against the sealing strip.

8. The sealing strip snap-fit ​​structure as described in claim 6, characterized in that, The end of the snap-fit ​​portion away from the connecting portion has a chamfered structure.

9. A sealing strip snap-fit ​​structure as described in claim 3, characterized in that, The hook is integrally formed with the vehicle-mounted drainage trough.

10. A vehicle, characterized in that, Including a sealing strip snap-fit ​​structure as described in any one of claims 1 to 9.

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